Speaker
Maureen Reedyk
(Brock University)
Description
Cd$_2$Re$_2$O$_7$ is a pyrochlore superconductor with a transition temperature (T$_C$) near 2 K. The results of Raman scattering and far-infrared reflectance measurements will be presented. The temperature dependence of optical phonons has been investigated above and below T$_C$ via IR spectroscopy, and as a function of Oxygen and Cadmium isotope substitution in the normal state via Raman scattering. The dominant presence of lattice vibrational modes in the optical spectra suggests that electron-phonon interaction plays an important role in the normal and superconducting state properties.
Primary author
Maureen Reedyk
(Brock University)
Co-authors
Prof.
Fereidoon Razavi
(Brock University)
Dr
Mojtaba Hajialamdari
(Brock University)
Dr
Reinhard Kremer
(Max Planck Institute for Solid State Research)
